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Windows XP, Vista,7,8

Problem:
A disk read error occurred
Press Ctrl+Alt+Del to restart

When press Ctrl+Ale+Del no response

Causes:

• Incorrect or invalid MBR configuration
• Improperly configured partition table
• Faulty hard drive
• IDE cables failing
• Bad RAM memory  Check the Memory

1. Attach the client hard drive to a working computer
2. Perform the following command

For Windows XP

copy c:\windows\system32\config\system c:\windows\tmp\system.bak
copy c:\windows\system32\config\software c:\windows\tmp\software.bak
copy c:\windows\system32\config\sam c:\windows\tmp\sam.bak
copy c:\windows\system32\config\security c:\windows\tmp\security.bak
copy c:\windows\system32\config\default c:\windows\tmp\default.bak

delete c:\windows\system32\config\system
delete c:\windows\system32\config\software
delete c:\windows\system32\config\sam
delete c:\windows\system32\config\security
delete c:\windows\system32\config\default

copy c:\windows\repair\system c:\windows\system32\config\system
copy c:\windows\repair\software c:\windows\system32\config\software
copy c:\windows\repair\sam c:\windows\system32\config\sam
copy c:\windows\repair\security c:\windows\system32\config\security
copy c:\windows\repair\default c:\windows\system32\config\default

For Windows 7,8,10

Look in the \windows\system32\config\regback folder for good files and copy them back to \system32\config folder

Run elevated command prompt

Type netsh winsock reset, then ENTER

Restart computer